Ceiling lamp



FIG. 1 is a bottom perspective view of a ceiling lamp showing a first embodiment of my new design.

FIG. 2 is a front view thereof; the rear, left, and right side views are identical thereto.

FIG. 3 is a bottom view thereof; the top view is not a part of the claimed design.

FIG. 4 is a bottom perspective view of a second embodiment.

FIG. 5 is a front view thereof; the rear, left, and right side views are identical thereto.

FIG. 6 is a bottom view thereof; the top view is not a part of the claimed design.

FIG. 7 is a bottom perspective view of a third embodiment.

FIG. 8 is a front view thereof; the rear, left, and right side views are identical thereto.

FIG. 9 is a bottom view thereof; the top view is not a part of the claimed design.

FIG. 10 is a bottom perspective view of a fourth embodiment.

FIG. 11 is a front view thereof; the rear, left, and right side views are identical thereto; and,

FIG. 12 is a bottom view thereof; the top view is not a part of the claimed design. 

The ornamental design for a ceiling lamp, as shown and described. 